21230120133003 has 16 divisors (see below), whose sum is σ = 29977751081376. Its totient is φ = 13318274457600.

The previous prime is 21230120132987. The next prime is 21230120133077. The reversal of 21230120133003 is 30033102103212.

It is not a de Polignac number, because 21230120133003 - 2⁴ = 21230120132987 is a prime.

It is a super-3 number, since 3×21230120133003³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (21230120133083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40128898 + ... + 40654503.

It is an arithmetic number, because the mean of its divisors is an integer number (1873609442586).

Almost surely, 2^{21230120133003} is an apocalyptic number.

21230120133003 is a deficient number, since it is larger than the sum of its proper divisors (8747630948373).

21230120133003 is a wasteful number, since it uses less digits than its factorization.

21230120133003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80788574.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21230120133003 its reverse (30033102103212), we get a palindrome (51263222236215).

The spelling of 21230120133003 in words is "twenty-one trillion, two hundred thirty billion, one hundred twenty million, one hundred thirty-three thousand, three".